A search for the decay of Higgs boson to a pair of \(b\) -quarks using the Higgs boson production in association with a \(W\)  or \(Z\)  boson is reported [1]}. The data used in this analysis were collected at a center-of-mass energy of 13 TeV during 2015 and 2016 running period, and correspond to an integral luminosity of 36.1 fb\(^{-1}\) . Three main signatures are explored, \(ZH\rightarrow \nu \nu b\overline{b}\) , \(WH\rightarrow \ell \nu b\overline{b}\)  and \(ZH\rightarrow \ell \ell b\overline{b}\) . These channels are referred to as 0-,1- and 2-lepton channels, based on the number of selected charged leptons. All events are required to have at least two jets, and exactly two jets must pass the \(b\) -tagging requirement. The event selection has been optimized for each lepton channel. Anti-QCD selections using the angular correlations between \(E_{\mathrm {T}}^{\mathrm {miss}}\)  and (di)jet-systems are applied to reduce further multi-jet background to negligible level in the 0 lepton channel. Dedicated identification and isolation requirements are required in the charged lepton to reduce multi-jet background in the 1 lepton channel. The reconstructed dilepton mass should be consistent with the \(Z\)  boson mass in the 2 lepton channel.
Selected events are categorized according to the reconstructed vector boson's transverse momentum \(p_{\mathrm {T}}^{V}\)  to enhance signal-to-background ratio. In the 0- and 1-lepton channels a signal region is defined, with \(p_{\mathrm {T}}^{V}\)\(> 150\)  GeV. In the 2-lepton channel two regions are considered, 75 GeV \(<\)  \(p_{\mathrm {T}}^{V}\)\(<\)  150 GeV and \(p_{\mathrm {T}}^{V}\)\(>\)  150 GeV as shown in Figure REF . Events are further split into two categories according to the jet multiplicity. In 0- and 1-lepton channels, events are considered with exactly two or three jets. In the 2-lepton channel, events are considered with exactly two or three or more jets.
